This dataset contains the raw confocal laser scanning microscopy (CLSM) slices and X-ray microtomography (micro-CT) slices for the holotype of Angucharcotes thayerae (NIGP180055) from mid-Cretaceous Burmese amber. This dataset is associated with the publication "Earliest fossil record of Phloeocharinae in mid-Cretaceous amber from northern Myanmar (Coleoptera: Staphylinidae)" (DOI:10.1016/j.cretres.2022.105371). Confocal images were obtained with a Zeiss LSM710 confocal laser scanning microscope, using the 488 nm (Argon) laser excitation line. The original CZI files are provided, which could be opened by the ZEISS ZEN software. Micro-CT data were obtained with a Zeiss Xradia 520 Versa 3D X-ray microscope. Scanning parameters were as follows: isotropic voxel size, 1.4777 μm; power, 3 W; acceleration voltage, 40 kV; exposure time, 5 s; projections, 2801. The TIFF stack is provided.